Composition of matter and process of making same.



1 UNITED sTArEs PATENT OFFICE.

JACOB s. ROBESON,OF CA DEN, NEW JERSEY, ASSIGNOR TO ROBEsoN PRoCEss COMPANY, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

COMPOSITION OF MATTER AND PROCESS OF MAKING SAME;

Specification of Letters Patent.

Patented April 23, 1907.

Application filed May 10, 1906. Serial No. 316,129.

To all whom it may concern:

' Be it known that'I, JACOB S. Ro EsoN, a citizen of the United States, and a resident of Camden, Camden county, New Jersey, have invented an Improved Composition of Matter and Process of Making the Same, (Case 13,) of which the following is a specification.

My invention relates to compositions of matter having adhesive properties, and consists of an improved Compound of this nature comprising a mass of sulfite liquor combined with a soluble albuminoid.

My invention comprises further the method or process or making this improved composition of matter.

In the manufacture of cellulose or paper pulp under what is known as the sulfite process," which consists in boilin wood and other fibres under pressure in a sdlution containing sulfurous acid and a base, such as lime or magnesia, a vast quantity of a watery mixture known as waste sulfite llquor is produced that hitherto has had little value, besides being highly objectionable in a number of ways and very difficult of disposal. In carrying the method or process of my present invention into effect, I employ a concentrated or evaporated solution of the same; preferring to use a neutral, undecomposed and concentrated mass of this waste iquor made in accordance with a method I have developed for utilizing such material. In my patent, No. 833,634, dated October 16, 1906, I have set forth a process of treating this raw waste liquor, by rendering it substantially neutral with the aid of milk of lime or other suitable alkaline material, and then quickly concentrating such neutralized body in cacao, without decomposition, to a desirable density. In the preferred method or process of making my improved compound, I propose to use this substantially neutral, undecomposed and concentrated mass ofsulfite liquor made in accordance with the process above set forth, and to a quantity of this liquor at a density of about 25 B., I add a small quantity of a solution of a soluble albuminoid, for instance, any of the well-known forms of animal glue, and incorporate the glue with the concentrated sulfite liquor by stirring ,or other suitable agitation with or without heat. As another instance of a soluble albuminoid for admixture with the sulfite liquor, I may mention that packing house product or residue, familiarly known as concentrated tankage or stick. In the manufacture of fertilizers from waste animal matter, the water with which such material has been cooked to se )arate the fat, becomes impregnated more or ess therewith. and also with a large uantity of nitrogenous material. It is tee nically known as tank water and is the source of concentrated tankage, or stick, which is made by evaporating said tank water. The density of the sulfite liquor may vary within certain pro ortions, but approximately should not be ess than 14 15., and may range as hi h as 40 B.

The solution of so uble alhuminoid, for instance any of the well-known forms of animal glue, is preferably in the proportion of about .10 per cent by weight of the water used; that is. to say, about two ounces of glue are to be dissolved in twenty ounces of water. This proportion, however, is only approximate, as it may vary with the character of the glue used, and in some experiments, rcsumably with a weaker glue I have usec as much as four ounces of glue with twenty ounces of water.

I have discovered that the substantially neutral and undecomposed mass of sulfitc liquor made in accordance with the process above referred to, throws down no precipitate upon the addition of glue, and, hence, my process difl'ers Widely from the prior practice in the art to which my invention relates, and in which various compounds comprising sulfite li uor and glue are disclosed. The formation of a precipitate by the addition of glue to sullite liquors heretofore treated appears to be well recognized, and the commonly accepted method of preventing the formation of such precipitate is to chan e the character of the sulfite liquor, whether in the raw or concentrated state, before the addition of the glue. The neutral mass which I employ, however, requires no change other than the necessary evaporation according to my process above set forth, and numerous experiments carried out at various temperatures and at various degrees of density within the range noted, indicate clearly that no precipitate is thrown down.

In practice, I have found that a mixture consisting of five parts by volume of the neutral and concentrated mass of waste sull'ite liquor and one part by volume of a solut on of a soluble albuminoid, animal glue, for 1nstnnce, gives uniformly satisfactory results. I do not wish, however, to be understood as limiting myself to the employment of these ingredients in the proportions given, but 1 believe they are the best adapted to give good results.

The composition of matter made in accordance with my invention is in liquid form and may be employed as an adhesive or as a sizing compound. W'hen stick is employed as the soluble albumlnold, the material resulting from such combination is valuable as a fertilizer.

I claim:

1. A soluble composition of matter forming an adhesive, containing chemically unchanged sullite liquor, and a soluble albuminoid. I

2. A soluble composition of matter forming an adhesive, comprising a mass of concentrated and chemically unchanged sulfite liquor, and a soluble albuminoid.

3. A soluble composition of matter forming an adhesive, comprising a substantially neutral, undecomposed and concentrated mass of sulfite liquor, and a soluble albuminoid.

4. A soluble composition of matter form ing an adhesive, containing chemically unchanged sulfite .iquor, and animal giro.

5. A soluble composition of matter forming an adhesive, comprising a concentrated and chemically unchanged mass of sullite liquor. and animal glue.

A soluble composition of matter forming an adhesive, comprising a substantially neutral, undceomposed and concentrated mass of sullite liquor, andanimal glue. I

7. A soluble 'eomposition of matter forming an adhesive, comprising five parts by volume of concentrated and chemically unchanged sullite liqu or, and one part by volume of a solution of a soluble albuminoid.

8. A soluble composition of matter forming an adhesive, comprising five parts by volume of a substantially neutral, undecomposed and concentrated mass of sulfite liquor, and one part by volume of a solution of animal glue.

In testimony whereof, I-have signed my name to this specification, in the presence of two subscribing witnesses JACOB S. ROBESON. l/Vitnesses:

C. A. RAPALLO, L. H. WADDROP. 

